Functional copolymers of low molar mass, processes for their pre

Details Functional copolymers of low molar mass, processes for their pre Functional copolymers of low molar mass, processes for their pre

1995-11-29

1998-06-23

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263184, 5263031, 526291, 526316, 526332, 526319, 526341, C08F 200, C08F 1400, C08F 2054, C08F 5636, C08F 2010, C08F 1804

Patent

active

057706670

ABSTRACT:
Processes for the preparation of a functional polymer of low molar mass, which includes initially charging a first quantity M1 of a mixture including at least one component selected from olefinically unsaturated monomers B and compounds A which are not themselves copolymerizable but which are able to react with at least one of the monomers B to form a copolymerizable addition compound, metering in prior to or during polymerization a second quantity M2 of a mixture whose composition can be identical to or different from that of the first mixture M1 and which includes at least one component selected from olefinically unsaturated monomers B and compounds A, initiating polymerization by use of a polymerization initiator and optionally a chain transfer agent, conducting polymerization in the presence of an oligomer or polymer C, wherein the oligomer or polymer C is either formed in situ from one or more of A and B or is dissolved in at least one of the quantities M1 and M2, wherein at least one of M1 and M2 includes a monomer B. The polymers are useful in coating compositions.

REFERENCES:
patent: 4145513 (1979-03-01), Dalibor
patent: 4350809 (1982-09-01), Fischer et al.
patent: 4710556 (1987-12-01), Plum
patent: 4916254 (1990-04-01), Watanabe et al.
patent: 5068288 (1991-11-01), Taljan et al.
patent: 5153257 (1992-10-01), Dalibor
patent: 5422421 (1995-08-01), Hovestadt et al.
patent: 5446099 (1995-08-01), Yoshida et al.

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